*{
    margin: 0;
    padding: 0;
}

.C-box{
    width: 500px;
    height: 200px;
    background-color: #fff;
    margin: 0 auto;
    margin-top: 200px;
    border-radius: 10px;
    box-shadow: 0 0 10px #000;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
}
.C-box input{
    width: 80px ;
    height: 80px;
    border-radius: 10px;
    border: 1px solid #000;
    font-size: 80px;
    text-align: center;
}